"Booklist is a book-review magazine that has been published by the American Library Association for more than 100 years, and is widely viewed as offering the most reliable reviews to help libraries decide what to buy and to help library patrons and students decide what to read, view, or listen to." [from source] The reviews are summary mixed with opinion and evaluation.
* PRINT version recommended
Founded by Bertha Mahony Milled in 1924 to recognize excellence in children's literature. A prominent resource for reviews on materials for children and young adults. Horn Book reviews the strengths and weaknesses of publications while ranking them on a scale of 1-4. A review of 1 is a starred review.
Operating for over sixty years, reviews focus on materials for children and teens, ranging from books to databases. The book reviews include a brief plot summary and a final verdict on the book. Pay particular attention to the SLJ Stars, which are the most noteworthy reads of the month.
"Publishers Weekly, familiarly known in the book world as PW... It offers feature articles and news on all aspects of the book business, bestsellers lists in a number of categories, and industry statistics, but its best known service is pre-publication book reviews, publishing some 9,000 per year." [from source]